Harrow-disk.



No. 874,268. PATENI'ED DEG; 1'7, 1907. L. E. WATERM AN.

HARROW DISK.

APPLIOATIOH FILED FEB. 19. 1907.

UNT

snares rarnnornron LEWIS E.'WATER1\IAN, OF ROCKFORD, ILLINOIS, ASSIGWOR TO EMERSON MANUFACTURING OOMPANY, OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

HAEROVI-EISK.

Epecifioation of Letters Eatezrt.

Patented. Dec. 17, 1907.

Application filed Pebruarv 3.9. 1907. Serial No. 358.211.

To all whom it may concern:

Be it known that I, LEWIS E. WATERMAN,

a citizen of the United States, residing at Rockford, in the county of Winnebago and Stateof Illinois, have invented certain new and useful Improvements in Harrow-Disks,

of which the following is a specification.

- The object of this inventionis to form a connection of the teeth of a disk-for harrows with their support in axmanner that a double tooth can be removed without disturbing the others;

The further object of this invention is to .formthe support for the teeth with a rectangular opening to receive a shaft connecting all the disks of a gang.

In the accompanying drawings, Figure 1 is a face representation of adisk in which a part of the cap is'removed. Fig. 2 is a transverse section of the disk. Fig. 3 is an isometrical representation of a section of the.

-support for the teeth. Fig. 4 is an isometrical representation of one of the i! shaped sections. Fig. 5 is an 'isonietricalrepresem tation of a section of one oil the double teeth.

and the branches are rectangular in cross One of the double toothed. sections section,

is so located in connection with the main section of the teeth-suppbrt that the end 8 thereof rests against the curved projection 2,

in the main section,

the V shaped section 10, and through a hole and against the ends of the sections 3 of the rim. The remaining double-toothed sections are located in the same manner in connection with the main section. The cap 9 is then placed over the teeth and rests in contact therewith. V shaped sections 10 are provided with a hole 11.

placed between the branches 6 and 7 of a A section 10 is tooth and between the main section 1 and cap 9. A bolt 12-is passed through a hole 13 through the hole 11 in in the cap 9 and receives a nut 14 on its pro jecting end. Each double-tooth is connected in a like manner. Should one of the branches of a double-tooth become broken, the tooth can readily be removed by taking out the bolt and V shaped section that holds it in place, without disturbing the cap or the other teeth.

I claim as my invention.

1. A harrow disk comprising a plate having curvedprojections and a segmental rim, a series of double-teeth held in position by the projections and rim, a cap located over the teeth, a removable section located between the branches of a tooth, and a bolt passing through the plate, removable section and A harrow disk comprising two plates, a series of double teeth, and means for holding the teeth in position between the plates, said holding means permitting the removal of. a double tooth'without destroying the holding means of the other teeth.

LEWIS E. WATERMAN.

Witnesses:

A. O. BEHEL, E. BEHEL. 

